The molecular formula C4F8 (molar mass: 200.03 g/mol, exact mass: 199.9872 u) may refer to:
- Octafluorocyclobutane, or perfluorocyclobutane
- Perfluoroisobutene (PFIB)
The molecular formula C4F8 (molar mass: 200.03 g/mol, exact mass: 199.9872 u) may refer to: